A: Many pet owners come to me with questions about dogs and chocolate. The topic is especially timely now, when Halloween candy is in so many homes across the US. During the holiday season in general vets see an increase in visits from owners whose dogs have ingested chocolate simply because there tends to be more of it lying around the house. The reason we see chocolate ingestion more in dog than cats is because dogs will often eat anything that smells good whereas cats are more picky.